Unit heater



Sept ll, 1934. J. AsKlN 1,973,678

UNIT HEATER Filed Sept. 28, 1933 mentor Gttorneg Patented Sept. l1, 1934 UNIT HEATER Joseph Askin, Bualo, N. Y., assignor to Fedders Manufacturing Company, Inc., Buffalo, N. Y.

Application September 28, 1933, Serial No. 691,317

2 Claims. (Cl. 257-137) This invention relates to heat exchange devices up tightly against the partition member to prowhich are adapted for the heating of enclosures vide a suspended mounting for the radiator 11. such as oices and factory rooms. A lock washer 35 is interposed between the head The invention is particularly applicable' to heatof each screw 33 and the housingn 5 ers designated in the art as the unit type, which The lower header 25 is spaced from the adi0 consist of radiators devised with a housing suitjoining lower wall of the housing structure and ably cowled for the direction of a forced air stream it is provided with guide pins or screws 36 mounted through the radiator from a motor-driven fan. in thel tapped holes 31Y thereof and which slid- The invention is directed to a novel means for ably engage through clearance slots 37 and 38 mounting the radiator within the housing, which, in the lower walls of the partition member 19 and 65 although providing a simple and rugged connechousing 10. I'hese slots are similar in disposition tion of the members, permits independent expanand configuration to the described slots of the sion and contraction of the radiator ,without subupper walls, as shown in Fig. 3. jecting the housing to destructive stresses. The portion of the housing 10 exterior of the The structural features of the invention are chamber 24 is utilized to house the fan 13 `and ZO more specifically described in the accompanying motor 12, the latter being rigidly secured to the speciiication and drawing, wherein: housing by brackets 39. The entire unit is sus- Fig. 1 is a front elevation of a unit heater pended on angle brackets 41 secured to the top with portions broken away to disclose the radiawall of the housing 10 and to which suitable straps tor mounting; or brackets may be secured for such purpose.` 'Z5 Fig. 2 is a section on the line 2-2 of Fig. 1; It will be observed that adequate allowance is Fig. 3 is a partial top view of the heater. made for vertical expansion of the radiator 11` The unit heater, as illustrated in the drawing, by the provision of the slidable mounting of the comprises aV supporting structure including a lower header 25. The screws 36 of this header housing 10 within which is mounted a radiator act as guide pins in the housing structure and also 11 and an air impelling unit consisting of a motor though slidably mounted therein, they support 12 for driving a fan 13. vThe housing 10 is generthe radiator against lateral movement. Upon ally rectilinear in shape and formed of sheet metal horizontal expansion 0f the headers 25, the SrWS to provide side, top, and bottom walls, an open 33 and 36 being mounted in transversely oval back, and a front wall 14, containing an enlarged holes, may shift therein without transmitting the 85 opening 15 having vertical flanges 16 extending expansion strains to the housing structure. In outward therefrom. Defiector plates 17 are addition to the above described functions, the mounted between the anges 16 by the bolts 18. Screws 33 and 36 serve to retain the partition A partition member 19 is mounted within the vmember 19 against axial misalignment and therehousing 10 and it is also rectilinear in shape, havby provide an assembly means between the hous- 9o ing a tubular walled portion 20 closely engaging ing 10 and the partition member 19. the corresponding walls of the housing and a rear I claim: wall 21 formed with a circular opening 22 and 1. A unit heater comprising a rectilinear housproviding a shroud for the fan 13. The partition ing structure having lateral slots in its top and member cooperates with the housing 10 to form bottom walls, a radiator therein comprising a pair 95 a chamber 24 therein for receiving the radiator' of headers connected by finned tubes, means for 11. securing one of the headers to the structure com- The radiator 11, for exemplary purposes, is prising screws entering through the slots of the shown as being of 'the tubular type having spaced top wall of the structure and engaging the header and similar headers 25 connected by a plurality to secure it to the structure, said remaining 10o of tubes 26, which engage through spaced horiheader being spaced from the bottom wall of the zontal fins 27. Each header is formed with a censtructure, means for mounting said remaining tral tapped hole 28 for receiving a communicating header for guided movement comprising pins enpipe and spaced bosses 29 each containing a gaging through the slots in the lower wall of the tapped hole 3l. The upper header is tightly sestructure and secured to the remaining header, 105

cured to the housing structure by screws 33. said'slots of the structure permitting horizontal These screws extend through lateral aligned slots movement of the screws and pins therein upon 34 and 30 in the housing and partition member expansion or contraction of the radiator, and said respectively and are received in the tapped holes pins being slidably movable in the slots of the 31 of the header, the header being thereby pulled lower wall upon expansion or contraction of the 11G radiator, and means for impelling air through the radiator. n v

2. A unit heater comprising a rectilinear housing, a partition structure therein comprising o. rectilinear member having a. vertical wall formed with an enlarged orice, the adjacent top and bottom walls of the housing and, partition struc-` ture being formed with aligned transverse slots, a radiator within the partitionstructure. screws JOSEPH ASIEN. 

